West Notes: Astros, Dodgers, Mariners, Rangers

A source tells MLB Daily Dish's Chris Cotillo that the Astros haven't discussed a long-term extension with Jason Castro yet. The 26-year-old appears to be a candidate for a long-term deal after a 2013 breakout campaign that saw him slug 18 home runs and generate 4.3 fWAR, tops among AL catchers not named Joe Mauer. However, he's now eligible for arbitration, and could become expensive quickly if he's not interested in an extension. As FOX Sports' Ken Rosenthal observed recently, teams appear increasingly willing to trade players who resist being locked up. Here's more from baseball's Western divisions: